Add WordPress.org Live Preview Blueprint to WP Super Cache (#46013)

* Add Super Cache Live Preview Blueprint

* Add changelog

* Update projects/plugins/super-cache/changelog/add-live-preview-blueprint

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

* Apply suggestions from code review

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

* style: fix blueprint.json formatting to use tabs instead of spaces

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Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>
Co-authored-by: Brandon Kraft <public@brandonkraft.com>

Committed via a GitHub action: https://github.com/Automattic/jetpack/actions/runs/24096095603

Upstream-Ref: Automattic/jetpack@4730e40

Author: kraftbj

CHANGELOG.md

@@ -9,6 +9,9 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 This is an alpha version! The changes listed here are not final.
 
+### Added
+- Add a WordPress.org Live Preview Blueprint.
+
 ### Changed
 - Device Detection: use an embedded version instead of the Composer dependency
 - Switch to Native TypeScript compiler based on Go.